codecourse.com - dns.ninja

`codecourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:36fb^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:8fbf^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.54.251^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.143.191^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gerald.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gerald.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gerald.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gerald.ns.cloudflare.com`
		A	108.162.193.168^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gerald.ns.cloudflare.com`
		A	172.64.33.168^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gerald.ns.cloudflare.com`
		A	173.245.59.168^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gerald.ns.cloudflare.com`
NS	`maria.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ac0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`maria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`maria.ns.cloudflare.com`
		A	108.162.192.192^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	172.64.32.192^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	173.245.58.192^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=8my58J2ozNKN8L2YSP9PHtamF7pFlf5INqJnYAb4TnI`
TXT	`google-site-verification=HIVs0mRh29pBuEHbE5GwkfCxKbNVqiDA9AlFZGP37GM`
TXT	`google-site-verification=to6zCrbFuhMJV7jnsHeCZR4ZMH4N9WB4IABV92zW9fs`
TXT	`v=spf1 include:spf.messagingengine.com include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.54.251, 172.67.143.191
		IPv6 hints	2606:4700:3030::6815:36fb, 2606:4700:3034::ac43:8fbf
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com
SOA	`gerald.ns.cloudflare.com`dns@cloudflare.com serial=2408222209

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784955252

rank #588905 globally
rank #246728 in the tld
WOT: SAFE (62/100)

Subdomains

www.codecourse.com

Same first word

codecourse.com

codecourse.net

codecourse.org

Similar names

sourcecode.glitch.me

decosource.com

sourcecode.org

sourcecode.ba

sourcecode.pl

codesource.in

codesource.nl

sourcecode.com.sg

sourcecode.us

sourcecode.expert

sourcecode.co.il

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coursecode.net

codesource.co.za

sourcecode.capital

sourcecode.io

sourcecode.co.ke

sourcecode.eu

sourcecode.sk

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sourcecode.mx

sourcecode.hosting

sourcecode.tv

sourcecode.net

sourcedeco.com

sourcecode.fr

sourcecode.co

sourcecode.de

sourcecode.pro

sourcecode.in.th

sourcecode.com

codesource.us

sourcecode.co.th

codesource.cn

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codesource.ru

sourcecode.solutions

codesource.hu

sourcecode.is

sourceoecd.org

sourcecode.vn

codesource.ir

sourceoecd.de

sourcecode.net.br

codesource.info

coursecode.com

sourcecode.academy

sourcecode.fund

sourcecode.nl

codesource.be

sourcecode.web.id

sourcecode.altervista.org

sourcecode.se

sourcecode.com.tw

sourcecode.at

ecosourced.com

sourcecode.no

sourcecode.li

sourcecode.biz

codesource.com

codesource.ca

codesource.org

sourcecode.ca

codesource.fr

sourceocde.org

sourcecode.ai

sourcecode.homes

sourcecode.cc

sourcecode.es

sourcecode.technology

codesource.eu

codesource.ch

sourcecode.ru

sourcecode.foundation

sourcecode.com.sa

codesource.com.au

codesource.io

sourcecode.co.uk

sourcecode.hu

DNS History

37 records (11 active, 26 former)

●NSgerald.ns.cloudflare.com2026-02-16 → 2026-07-25 · 3 obs

○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

○NSian.ns.cloudflare.com2015-05-31 → 2021-05-12 · 4 obs

● 2015-05-31 13:43:22
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

●NSmaria.ns.cloudflare.com2026-02-16 → 2026-07-25 · 3 obs

○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

○NSolga.ns.cloudflare.com2015-05-31 → 2021-05-12 · 4 obs

● 2015-05-31 13:43:22
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

●MXalt1.aspmx.l.google.com2015-05-31 → 2026-07-25 · 5 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

●MXalt2.aspmx.l.google.com2015-05-31 → 2026-07-25 · 5 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

●MXalt3.aspmx.l.google.com2015-05-31 → 2026-07-25 · 5 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

●MXalt4.aspmx.l.google.com2015-05-31 → 2026-07-25 · 5 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

●MXaspmx.l.google.com2015-05-31 → 2026-07-25 · 5 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-07-25 04:59:46

○MXin1-smtp.messagingengine.com2015-10-18 → 2021-05-12 · 5 obs

○ 2015-05-31 13:43:22
● 2015-10-18 21:41:28
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○MXin2-smtp.messagingengine.com2015-10-18 → 2021-05-12 · 5 obs

○ 2015-05-31 13:43:22
● 2015-10-18 21:41:28
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

●A104.21.54.2512026-02-16 → 2026-07-25 · 38 obs

○ 2021-05-12 02:32:28
● 2026-02-16 13:48:40
● 2026-03-02 16:15:24
○ 2026-03-03 14:37:58
● 2026-03-09 19:01:10
● 2026-03-12 05:49:34
○ 2026-03-14 17:29:30
● 2026-03-22 15:00:06
● 2026-04-14 18:02:38
○ 2026-04-23 03:01:48
● 2026-04-23 05:17:32
● 2026-04-28 16:04:48
○ 2026-04-30 07:10:10
● 2026-05-01 02:18:28
○ 2026-05-04 13:22:24
● 2026-05-06 09:15:16
● 2026-05-10 01:38:48
○ 2026-05-12 00:38:00
● 2026-05-17 19:56:26
● 2026-05-21 19:25:54
○ 2026-05-24 23:17:58
● 2026-05-27 21:50:18
● 2026-06-06 10:05:46
○ 2026-06-08 16:18:04
● 2026-06-08 16:58:28
● 2026-06-13 02:18:14
○ 2026-06-15 02:49:52
● 2026-06-15 19:20:26
● 2026-06-17 18:18:08
○ 2026-06-18 21:43:30
● 2026-06-19 01:25:20
○ 2026-06-25 12:33:42
● 2026-06-26 11:12:34
○ 2026-07-09 08:34:20
● 2026-07-10 13:54:06
○ 2026-07-12 08:43:10
● 2026-07-13 09:09:06
● 2026-07-25 04:59:46

○A104.24.16.612015-10-18 → 2016-03-17 · 5 obs

○ 2015-05-31 13:43:22
● 2015-10-18 21:41:28
● 2016-03-17 01:52:20
○ 2017-01-08 09:12:50
○ 2026-07-25 04:59:46

○A104.24.17.612015-10-18 → 2016-03-17 · 5 obs

○ 2015-05-31 13:43:22
● 2015-10-18 21:41:28
● 2016-03-17 01:52:20
○ 2017-01-08 09:12:50
○ 2026-07-25 04:59:46

○A104.25.98.332017-01-08 → 2017-01-08 · 4 obs

○ 2016-03-17 01:52:20
● 2017-01-08 09:12:50
○ 2020-05-24 22:55:44
○ 2026-07-25 04:59:46

○A104.25.99.332017-01-08 → 2017-01-08 · 4 obs

○ 2016-03-17 01:52:20
● 2017-01-08 09:12:50
○ 2020-05-24 22:55:44
○ 2026-07-25 04:59:46

○A104.26.6.672020-05-24 → 2021-05-12 · 5 obs

○ 2017-01-08 09:12:50
● 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○A104.26.7.672020-05-24 → 2021-05-12 · 5 obs

○ 2017-01-08 09:12:50
● 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○A104.28.24.662015-05-31 → 2015-05-31 · 3 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2026-07-25 04:59:46

○A104.28.25.662015-05-31 → 2015-05-31 · 3 obs

● 2015-05-31 13:43:22
○ 2015-10-18 21:41:28
○ 2026-07-25 04:59:46

●A172.67.143.1912026-02-16 → 2026-07-25 · 38 obs

○A172.67.74.192021-05-12 → 2021-05-12 · 4 obs

○ 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○A188.114.96.02026-03-03 → 2026-07-12 · 36 obs

○ 2026-03-02 16:15:24
● 2026-03-03 14:37:58
○ 2026-03-09 19:01:10
○ 2026-03-12 05:49:34
● 2026-03-14 17:29:30
○ 2026-03-22 15:00:06
○ 2026-04-14 18:02:38
● 2026-04-23 03:01:48
○ 2026-04-23 05:17:32
○ 2026-04-28 16:04:48
● 2026-04-30 07:10:10
○ 2026-05-01 02:18:28
● 2026-05-04 13:22:24
○ 2026-05-06 09:15:16
○ 2026-05-10 01:38:48
● 2026-05-12 00:38:00
○ 2026-05-17 19:56:26
○ 2026-05-21 19:25:54
● 2026-05-24 23:17:58
○ 2026-05-27 21:50:18
○ 2026-06-06 10:05:46
● 2026-06-08 16:18:04
○ 2026-06-08 16:58:28
○ 2026-06-13 02:18:14
● 2026-06-15 02:49:52
○ 2026-06-15 19:20:26
○ 2026-06-17 18:18:08
● 2026-06-18 21:43:30
○ 2026-06-19 01:25:20
● 2026-06-25 12:33:42
○ 2026-06-26 11:12:34
● 2026-07-09 08:34:20
○ 2026-07-10 13:54:06
● 2026-07-12 08:43:10
○ 2026-07-13 09:09:06
○ 2026-07-25 04:59:46

○A188.114.97.02026-03-03 → 2026-07-12 · 36 obs

○A2400:cb00:2048:1::6818:103d2016-03-17 → 2016-03-17 · 4 obs

○ 2015-10-18 21:41:28
● 2016-03-17 01:52:20
○ 2017-01-08 09:12:50
○ 2026-07-25 04:59:46

○A2400:cb00:2048:1::6818:113d2016-03-17 → 2016-03-17 · 4 obs

○ 2015-10-18 21:41:28
● 2016-03-17 01:52:20
○ 2017-01-08 09:12:50
○ 2026-07-25 04:59:46

○A2400:cb00:2048:1::6819:62212017-01-08 → 2017-01-08 · 4 obs

○ 2016-03-17 01:52:20
● 2017-01-08 09:12:50
○ 2020-05-24 22:55:44
○ 2026-07-25 04:59:46

○A2400:cb00:2048:1::6819:63212017-01-08 → 2017-01-08 · 4 obs

○ 2016-03-17 01:52:20
● 2017-01-08 09:12:50
○ 2020-05-24 22:55:44
○ 2026-07-25 04:59:46

○A2606:4700:20::681a:6432020-05-24 → 2021-05-12 · 5 obs

○ 2017-01-08 09:12:50
● 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○A2606:4700:20::681a:7432020-05-24 → 2021-05-12 · 5 obs

○ 2017-01-08 09:12:50
● 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

○A2606:4700:20::ac43:4a132021-05-12 → 2021-05-12 · 4 obs

○ 2020-05-24 22:55:44
● 2021-05-12 02:32:28
○ 2026-02-16 13:48:40
○ 2026-07-25 04:59:46

●A2606:4700:3030::6815:36fb2026-07-03 → 2026-07-25 · 7 obs

○ 2026-06-26 11:12:34
● 2026-07-03 14:22:14
○ 2026-07-09 08:34:20
● 2026-07-10 13:54:06
○ 2026-07-12 08:43:10
● 2026-07-13 09:09:06
● 2026-07-25 04:59:46

○A2606:4700:3031::ac43:8fbf2026-02-16 → 2026-06-26 · 35 obs

○A2606:4700:3032::6815:36fb2026-02-16 → 2026-06-26 · 35 obs

●A2606:4700:3034::ac43:8fbf2026-07-03 → 2026-07-25 · 7 obs

○ 2026-06-26 11:12:34
● 2026-07-03 14:22:14
○ 2026-07-09 08:34:20
● 2026-07-10 13:54:06
○ 2026-07-12 08:43:10
● 2026-07-13 09:09:06
● 2026-07-25 04:59:46

○A2a06:98c1:3120::2026-03-03 → 2026-07-12 · 36 obs

○A2a06:98c1:3121::2026-03-03 → 2026-07-12 · 36 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, c.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net...	-
codecourse.com	gerald.ns.cloudflare.com, maria.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.192

NS records: gerald.ns.cloudflare.com, maria.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codecourse.com (unsigned zone)

⏱️ Timing

Total: 213ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.143.191, 104.21.54.251`
AAAA	2	`2606:4700:3034::ac43:8fbf, 2606:4700:3030::6815:36fb`
NS	2	`gerald.ns.cloudflare.com, maria.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`google-site-verification=8my58J2ozNKN8L2, google-site-verification=HIVs0mRh29pBuEH...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gerald.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (gerald.ns.cloudflare.com, gerald.ns.cloudflare.com, gerald.ns.cloudflare.com...)

Analysis

Hierarchy

www.codecourse.com is delegated beneath codecourse.com.

IP Addresses

codecourse.com points to the four IP addresses 104.21.54.251, 172.67.143.191, 2606:4700:3030::6815:36fb and 2606:4700:3034::ac43:8fbf.

berleygrid.click, peakfitmat.com, tuyendung.vn plus two other host names have IP numbers in common with codecourse.com.

Name Servers

DNS delegation for codecourse.com points to two name servers: gerald.ns.cloudflare.com and maria.ns.cloudflare.com.

The name server configuration of codecourse.com is shared with other domains, for instance renodecodesign.com, pat-drill.com, notebookspec.com and two others.

There is at least partial name server overlap between codecourse.com and other domains — kaodigital.com.ar, martinencabodentistas.com, kuriname.com and two more among them.

These name servers are routinely deployed together with the name servers sharon.ns.cloudflare.com.

Hosts with 6 IP addresses each:

gerald.ns.cloudflare.com has IP addresses 108.162.193.168, 172.64.33.168 and 173.245.59.168, plus 3 other.

maria.ns.cloudflare.com has IP addresses 108.162.192.192, 172.64.32.192 and 173.245.58.192, plus 3 other.

Mail Servers

codecourse.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by codecourse.com are shared with other domains: bellagloaesthetics.com, chefscandm.com, ns500731.ns500671.ns500671.ns500742.ns500731.ns500671.ns500742.ns500731.ns500688.ns500705.ns500705.ns500688.tenderladiesbz.com and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com has two IP addresses: 172.253.115.27 and 2607:f8b0:4004:c1f::1a.

alt1.aspmx.l.google.com has two IP addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.